<template>
  <div class="food-detail">
    <scroll ref="scroll">
      <div class="food-content">
        <div class="image-header">
          <img :src="food.image" alt />
          <div class="backicon" @click="backClick">
            <i class="icon-arrow_lift"></i>
          </div>
        </div>
        <div class="content">
          <h1 class="title">{{food.name}}</h1>
          <div class="detail">
            <span class="sell-count">月售{{food.sellCount}}份</span>
            <span class="rating">好评率{{food.rating}}%</span>
          </div>
          <div class="price">
            <span class="now">￥{{food.price}}</span>
            <span class="old" v-show="food.oldPrice">￥{{food.oldPrice}}</span>
          </div>
          <div class="carrtcontrol-wrapper">
            <cartControl :food="food"></cartControl>
          </div>
          <div class="buy" v-show="!food.count||food.count===0" @click="addFirst(food)">加入购物车</div>
        </div>
        <split v-show="food.info"></split>
        <div class="info" v-show="food.info">
          <h1 class="title">商品信息</h1>
          <p class="text">{{food.info}}</p>
        </div>
        <split></split>
        <div class="rating">
          <h1 class="title">商品评价</h1>
          <ratingSelect
            :selectType="selectType"
            :onlyContent="onlyContent"
            :desc="desc"
            :ratings="food.ratings"
            @ratingTypeSelect="ratingTypeSelect"
            @onlyContentSelect="onlyContentSelect"
          ></ratingSelect>
        </div>
      </div>
    </scroll>
  </div>
</template>

<script>
import scroll from "../../../components/common/scroll/scroll";
import cartControl from "../../../components/content/cartControl/cartControl";
import split from "../../../components/content/split/split";
import ratingSelect from "../../../components/content/ratingSelect/ratingSelect";
import Vue from "vue";

//定义常量
const POSITIVE = 0;
const NEGATIVE = 1;
const ALL = 2;

export default {
  name: "foodDetail",
  props: {
    food: {
      type: Object,
      default() {
        return {};
      }
    }
  },
  data() {
    return {
      selectType: POSITIVE,
      onlyContent: false,
      desc: {
        all: "全部",
        positive: "推荐",
        negative: "吐槽"
      }
    };
  },

  components: { scroll, cartControl, split, ratingSelect },
  methods: {
    backClick() {
      this.$emit("backClick");
    },
    addFirst(food) {
      Vue.set(this.food, "count", 1);
    },
    ratingTypeSelect(type) {
      this.selectType = type;
    },
    onlyContentSelect(onlyContent) {
      this.onlyContent = !this.onlyContent;
    }
  }
};
</script>

<style lang="stylus" scoped>
.food-detail
  position: fixed
  left: 0
  top: 0
  bottom: 48px
  z-index: 30
  width: 100%
  background-color: #fff
  overflow: hidden
  .wrapper
    height: 520px
  .image-header
    position: relative
    width: 100%
    height: 0
    padding-top: 100% // 保证padding和width高度相同
    img
      position: absolute
      top: 0
      left: 0
      width: 100%
      height: 100%
    .backicon
      position: absolute
      top: 0
      left: 0
      .icon-arrow_lift
        display: block
        padding: 10px
        color: #fff
        font-size: 20px
  .content
    position: relative
    padding: 18px
    .title
      line-height: 14px
      margin-bottom: 8px
      font-size: 14px
      font-weight: 700
      color: rgb(7, 17, 27)
    .detail
      margin-bottom: 18px
      line-height: 10px
      height: 10px
      font-size: 0
      .sell-count, .rating
        font-size: 10px
        color: rgb(147, 153, 159)
      .sell-count
        margin-right: 12px
    .price
      font-weight: 700
      line-height: 24px
      .now
        margin-right: 8px
        font-size: 14px
        color: rgb(240, 20, 20)
      .old
        text-decoration: line-through
        font-size: 10px
        color: rgb(147, 153, 159)
    .carrtcontrol-wrapper
      position: absolute
      right: 12px
      bottom: 12px
    .buy
      position: absolute
      right: 18px
      bottom: 18px
      z-index: 10
      height: 24px
      line-height: 24px
      padding: 0 12px
      font-size: 10px
      box-sizing: border-box
      border-radius: 12px
      color: #fff
      background-color: rgb(0, 160, 220)
  .info
    padding: 18px
    .title
      line-height: 14px
      margin-bottom: 6px
      font-size: 14px
      color: rgb(7, 17, 27)
    .text
      line-height: 24px
      padding: 0 8px
      font-size: 12px
      color: rgb(77, 85, 93)
  .rating
    padding-top: 18px
    .title
      line-height: 14px
      margin-left: 18px
      font-size: 14px
      color: rgb(7, 17, 27)
</style>